love the yellow with the black rims. Speed yellow is my favorite color too (along with signal green and orange). I think the car would look great with a black "boxster script" decal on the rockers and some litronics...Enjoy your new toy!
Life's too short to worry about an IMS. I've been driving my '98 for three years now and enjoy every minute of it. Just remember that on this forum most of the talk about IMS failures comes from those who profit from retrofits.